| 一熟转Bt基因棉田主要害虫及其天敌的发生规律 |
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| 引用本文： | 崔金杰,夏敬源.一熟转Bt基因棉田主要害虫及其天敌的发生规律[J].植物保护学报,2000,27(2):141-145. |
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| 作者姓名： | 崔金杰 夏敬源 |
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| 作者单位： | 中国农业科学院棉花研究所，中国农业科学院棉花研究所 安阳 455112，安阳 455112 |
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| 基金项目： | “九五”科技攻关项目资助(96-005-01-04-5) |
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| 摘 要： | １９９７年在田间研究了转Ｂｔ基因棉品系Ｒ９３－４在一熟种植方式下对棉田主要害虫及其天敌及其种群的影响。结果表明，转基因棉对棉铃虫（Ｈｅｌｉｃｏｖｅｒｐａ ａｒｍｉｇｅｒａ）和棉造桥虫（Ａｎｏｍｉｓ ｆｌａｖａ）有良好的抗性，发生高期百株幼虫数量均显著低于对照品种中１２，但转基因棉田仍需防治第３和第４代棉铃虫。和常规棉相比，转基因棉自然控制田和综合防治田的棉苗蚜（Ａｐｈｉｓ ｇｏｓｓｙｐｉｉ）分别增
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| 关 键 词： | 转Bt基因棉 棉花害虫 天敌 综合防治 发生规律 |
EFFECTS OF Bt (BACILLUS THÜRINGIENSIS)TRANSGVNIC COTTON ON THE DYNAMICS OF PEST POPULATION AND THEIR ENEMIES |
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| Cui Jinjie and Xia Jingyuan.EFFECTS OF Bt (BACILLUS THÜRINGIENSIS)TRANSGVNIC COTTON ON THE DYNAMICS OF PEST POPULATION AND THEIR ENEMIES[J].Acta Phytophylacica Sinica,2000,27(2):141-145. |
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| Authors: | Cui Jinjie and Xia Jingyuan |
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| Institution: | Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455112 and Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455112 |
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| Abstract: | The effects of Bt transgenic cotton R93-4 under single cropping condition, on population dynamics of the main pests and their natural enemies were studied systematically in field in 1997. The results showed that Bt cotton was highly resistant to cotton bollworm Halicouerpa armigera (Hubner) and cotton semi-looper Anomis flava (Fabricius), their larval populations in peak occurrence period were significantly lower than those on the check, the original (non Bt transgenic) cotton variety, but it still has need to adopt additional chemical control against cotton bollworm in its 3rd and 4th generations. As in comparison with the check, the populations of cotton aphid Aphis gossipii, carmine spider mite Tetranychus cinnabarinus , cotton seedling thrips Thrips tabaci, greenhouse whitefly Trialeurodes vaporariorum, cotton leafhopper Amrasca bigutida, ladybugs Coccinella septempunctata and Propylaea japonica, spider Erigonidium graminicola, lacewing Ckrysopa sp. and minute anthocorid Orius nunutus were 25.5%, 44.2%, -20.8%, 29.7%, 118.8%, -14.0%, -8.5%, 15.9%, 14.0% and -1.6%, respectively in natural controlR93-4 field,and - 84.3% , -94.0%, -60.0%, 23.1%, -42.5%, -30.2%, 75.7%, 11.8%, 139.5%and - 55.1 % , respectively in integrated management R93-4 field. Thus it can be seen that generally in Bt transgenic cotton field, the population and damage of sucking insects had changed to heavier, the specific parasitoids decreased obviously, but the change of predators number was negligible. After the IPM strategies had been implemented in Bt transgenic cotton field, the non-target pests were controlled effectively, owing to the preservation and propagation of natural enemies. |
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| Keywords: | Bt transgenic cotton cotton pests natural enemies IPM |
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